优化代码

internal/ui/styles_test.go

@@ -0,0 +1,79 @@
+package ui
+
+import (
+	"image/color"
+	"testing"
+
+	"fyne.io/fyne/v2/test"
+)
+
+// nrgba 把颜色转成不透明的 NRGBA，便于直接比较。
+func nrgba(c color.Color) color.NRGBA {
+	return color.NRGBAModel.Convert(c).(color.NRGBA)
+}
+
+func TestBubbleColorsFollowTheme(t *testing.T) {
+	test.NewApp()
+
+	applyThemeMode(ThemeContrast)
+	darkBot := nrgba(colorFor(bubbleBot))
+	darkErr := nrgba(colorFor(bubbleError))
+	darkBorder := nrgba(borderFor(bubbleUser))
+	darkStrong := nrgba(borderFor(bubbleError))
+
+	// 黑白主题：气泡底色应贴近纯黑，文字侧仍是纯白前景。
+	if darkBot.R > 0x30 {
+		t.Fatalf("黑白主题下助手气泡应贴近纯黑，实际 %v", darkBot)
+	}
+	if darkStrong.R != 0xFF {
+		t.Fatalf("黑白主题下错误气泡描边应为纯白，实际 %v", darkStrong)
+	}
+	if darkBorder.R >= darkStrong.R {
+		t.Fatalf("错误描边应比普通描边更亮：普通 %v，错误 %v", darkBorder, darkStrong)
+	}
+
+	applyThemeMode(ThemeLight)
+	lightBot := nrgba(colorFor(bubbleBot))
+	lightErr := nrgba(colorFor(bubbleError))
+	lightStrong := nrgba(borderFor(bubbleError))
+
+	if lightBot.R < 0xD0 {
+		t.Fatalf("浅色主题下助手气泡应贴近纯白，实际 %v", lightBot)
+	}
+	if lightStrong.R != 0x00 {
+		t.Fatalf("浅色主题下错误气泡描边应为纯黑，实际 %v", lightStrong)
+	}
+	if lightBot.R == darkBot.R {
+		t.Fatal("切换主题后气泡底色应发生变化")
+	}
+	if lightErr.R == darkErr.R {
+		t.Fatal("切换主题后错误气泡底色应发生变化")
+	}
+}
+
+func TestChatViewRethemeRepaintsBubbles(t *testing.T) {
+	test.NewApp()
+	applyThemeMode(ThemeContrast)
+
+	c := newChatView()
+	b := newBubble("助手", bubbleBot)
+	c.appendBubble(b)
+
+	before := nrgba(b.bg.FillColor)
+	beforeStroke := nrgba(b.bg.StrokeColor)
+
+	applyThemeMode(ThemeLight)
+	c.retheme()
+
+	after := nrgba(b.bg.FillColor)
+	afterStroke := nrgba(b.bg.StrokeColor)
+	if before == after {
+		t.Fatalf("换肤后气泡底色应改变：%v -> %v", before, after)
+	}
+	if beforeStroke == afterStroke {
+		t.Fatalf("换肤后气泡描边应改变：%v -> %v", beforeStroke, afterStroke)
+	}
+	if after != nrgba(colorFor(bubbleBot)) {
+		t.Fatalf("换肤后底色应与当前主题一致：%v != %v", after, nrgba(colorFor(bubbleBot)))
+	}
+}